Installation
- npm
- pnpm
- yarn
Terminal
Initialization
1
Create the Atlas Provider
To initialize the application, you need to create a client provider component and wrap your application with it. Since Atlas needs to authenticate with your backend and verify that users are only accessing what they can, you will need to place it under your authentication provider.It’s very important that you provide all the required props:
getAuth: A function that returns the authentication token. This is only necessary if the authentication with the backend is done with tokens and headers (for example, Clerk).loginCallback: A function that is called whenever the user tries to do an action that requires authentication.userId: The ID of the user.userEmail: The email of the user. Optional.userName: The name of the user. Optional.isUserLoading: A boolean that indicates whether the user is still loading. Optional. Helps Atlas to avoid flickering when the user status changes.
AtlasProvider, wherever you have the rest of your providers and under your authentication provider.For example, with Clerk:2
Create the Atlas API routes
You will need to initialize the client in the backend. To do so, you will need to:
- Set the Atlas API key in the environment variables.
- Create the Atlas Next Server Client, providing a callback that returns the user that performed the request. This callback will depend on the authentication provider you are using.
- Use the Atlas Next Server Client to create the API routes that will be used to access the Atlas API. They should be in the
src/app/api/atlas-api/[slug]/route.tsfile.
Use our Atlas widgets
Remember that you need to have followed the installation
guide before you can use any of these widgets.
@runonatlas/next/client.
PricingComponent Widget
ThePricingComponent widget shows the plans in your Atlas pricing model and allows users to purhcase a subscription to a plan via Atlas’ in-line checkout.
IMPORTANT: The successUrl must be absolute. For example, /success is not valid, but https://your-app.com/success is valid.
iFrame. When a visitor selects a plan, they’ll be redirected to your core application where the SDK is installed to sign in and complete the purchase.
To embed pricing on a website outside your app, use the /pricing-embed endpoint and pass the following URL query parameters:
publishableKey- public key with read access to your pricing model (accessible in settings/api-keys)redirectTo- absolute URL to redirect users to your app when they select a plansuccessUrl- absolute URL to return users to after they succesfully purchase a plan
redirectTo andsuccessUrl must be absolute. For example, /success is not valid, but https://your-app.com/success is valid.
CustomerPortalComponent Widget
The CustomerPortalComponent widget shows the current user what plan they are subscribed to, a history of their payments, and allows them to cancel or change their plan at any time. IMPORTANT: ThesuccessUrl must be absolute. For example, /success is not valid, but https://your-app.com/success is valid.
Restrict user access based on their subscriptions
You can prevent users from accessing restricted parts of your application based on their subscription. To do so, it is important that you do it both in the UI and in the backend:UI Protection
Protecting the UI is the easiest way to prevent users from accessing
restricted parts of your application.
Backend Protection
Protecting the UI is cool, but not enough! You need to protect the backend
as well. This way, you can ensure that users cannot access restricted parts
of your application even if they bypass the UI.
UI Protection
Using hooks
You can use theuseFeaturesAllowed hook to check if a user has access to a feature.
useCustomerFeatures hook to get a users access status for all features in your pricing model:
Using components
You can use theFeatureProtect component to check if a user has access to a feature.
Backend Protection
Using Atlas in the backend is very easy. You just need to use theatlasServerClient that we created before to check if a user has access to a feature.
For example, if you are using Clerk:
src/app/api/example/route.ts
Limit-based features
Sometimes, just having a feature as enabled or disabled is not enough, and our pricing models require limits to be set. For example, 5 users per account, or 20GB of storage. Setting this up with Atlas is very easy. And, if at some point the limits change, you won’t need to change the code again!Configuring the backend
The backend needs to understand what the limits are and how to check if the limit has been reached. To do so, you need to use theatlasServerClient and provide callbacks per each limit that you might want to use.
For example, given a feature whose id is data-explorer, you can provide a callback to check if the limit has been reached:
src/atlas/server.ts
data-explorer feature is available, Atlas will use the callback to compute it.
What happens if you don't configure a limit?
What happens if you don't configure a limit?
By default, if you haven’t configured a limit callback, Atlas will deny access to the feature if it has a limit. You can easily override this behavior. For example:
src/atlas/server.ts
Explanation in the UI
When using both the<FeatureProtect> component and the useFeaturesAllowed() hook, it will automatically check if the user has access to the features you are protecting AND if the limit has not been reached.
However, it is possible that you want to show your user why the access was denied! To to do this, we give you the reasons why the access was denied. For example, with the hook useFeaturesAllowed:
src/app/home/page.tsx
<FeatureProtect> component, instead of directly providing the FallbackComponent, you can actually provide a function that returns the component to be rendered when the access is denied. For example:
src/app/home/page.tsx
Usage-based and credit-based features
When using Next.js in a serverless environment (e.g., Vercel, Netlify), it is
crucial to properly manage event batching to prevent data loss. See the
Batching events section for required configurations.
Understanding billing types
Atlas supports two types of billing for consumption-based features: Usage-based billing: Events are rolled up for the entire billing period, the price is applied, and the user is billed in arrears according to what they used. This is traditional usage-based billing where customers pay for what they consume after the fact. Credit-based billing: Users are allocated a specific amount of a custom pricing unit (e.g., credits) each month. When an event is received in Atlas that matches a credit-based price, their balance of custom pricing units is instantly deducted. This provides near real-time consumption tracking with immediate balance updates.Blocking consumption-based feature access and eventual consistency
Blocking consumption-based feature access and eventual consistency
Atlas offers the ability to block access to a usage-based and credit-based features
via the Max usage and Block overage options, respectively.Max usage: (Number) The maximum amount of a usage-based feature a customer is allowed to consume within a single billing
period. If specified, Atlas will block access after usage reaches the amount specified and then unblock access at the start
of the next billing period. If not specified, Atlas will allow unlimited usage in any given billing period.Block overage: (Boolean) Whether or not to prevent a customer from drawing custom pricing unit balance negative.
If enabled, Atlas will block access to a feature when a balance of 0 has been detected. Otherwise, Atlas will continue
accepting events and further reduce the customers credit balance negative. The next allocation of custom pricing units
will be applied as normal, increasing the customers balance from the current negative balance by the amount of the
allocation.Because Atlas’s event ingestion system is designed to be eventually
consistent, it is possible for a small number of events to be processed before
Atlas feature flagging has recognized that the customer has hit a balance of 0.
This means that small overages are possible even if
blockOverage is enabled.
For more real time access control, please reach out to customer support at
support@runonatlas.com.Configuring the backend
To bill your customers correctly, your application must send an event to Atlas each time a usage-based or credit-based feature is consumed. This is done using theatlasServerClient.enqueueFeatureEvents method, followed by atlasServerClient.flushEvents to ensure the event is sent immediately. In a serverless environment, this two-step process is essential.
src/app/api/example/route.ts
Batching events
To optimize performance and avoid rate limits, the Atlas client automatically batches usage events before sending them. You can customize this batching behavior by configuring theeventsFlushAt (number of events) and eventsFlushInterval (time in milliseconds) options during client initialization.
This will be very important if you are using a serverless backend, such as Vercel or Netlify, to ensure that events are sent before the serverless function is terminated.
src/atlas/server.ts
flushEvents method.

